/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package controlador.visao.curso;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.annotation.Resource;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.sql.DataSource;

/**
 *
 * @author anibal
 */
@WebServlet(name="ListarCursos", urlPatterns={"/ListarCursos"})
public class ListarCursos extends HttpServlet {
    @Resource(name = "bancoNotas")
    private DataSource bancoNotas;


    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        Connection con = null;
        Statement stm = null;
        try {

            con = bancoNotas.getConnection();
            stm = con.createStatement();
            ResultSet rs = stm.executeQuery("select nome,id from cursos");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet ListarCursos</title>");
            out.println("<link rel=\"stylesheet\" type=\"text/css\" href=\"resources/css/jsfcrud.css\" >");
            out.println("</head>");
            out.println("<body>");
            out.println(""+
            "<table  border=\"1\">"+
            "<thead>"+
                "<tr>"+
                    "<th>Nome</th>"+
                    "<th>Visualização</th>"+
                    "<th>Edição</th>"+
                    "<th>Exclusão</th>"+
                "</tr>"+
            "</thead>"+
            "<tbody>");
            String id;
            while(rs.next()){
                id = rs.getString("id");
               out.println("<tr><td>");
               out.println(rs.getString("nome")+"<br/>");
               out.println("</td><td>");
               out.println("<a href=\"ViewCursos?codigo="+id+"\">visualizar</a> </td><td>");
               out.println("<a href=\"AlterarCursos?codigo="+id+"\">Alterar</a></td><td>");
               out.println("<a href=\"ExcluirCursos?codigo="+id+"\">Apagar</a> </td></tr>");
            }
            
            out.println("</tbody>");
            out.println("</table>");
            out.println("<a href=\"IncluirCursos\">Incluir Novo Curso</a>");
            out.println("</body>");
            out.println("</html>");
           
        } catch (SQLException ex) {
            Logger.getLogger(ListarCursos.class.getName()).log(Level.SEVERE, null, ex);
        } finally { 
            try {
                stm.close();
                con.close();
                out.close();
            } catch (SQLException ex) {
                Logger.getLogger(ListarCursos.class.getName()).log(Level.SEVERE, null, ex);
            }

        }
    } 

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    } 

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
